福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

以下链接皆有货

3596367-B Hx82 Oem  Takeoff for Cummins

5558150-B ( Blemished) for Cummins

Danfoss 106D001 Valve

Peterson Lighting V385S 384/385 Rectangular Porch/Utility Lights Clear,

3689649RX Air Brake Compressor 1 Cylinder for Cummins

5310011 Bracket for Caterpillar

Shyft Group Inc. 972630 Steering Knuckle Rh

Case ND017521 Cylinder

Komatsu 723-11-01750 Valve Asm

Aftermarket 4318835 Oil Cooler

Yale 518329662 Rod Piston

F4XY12043B13B Module for Ford

F4XY12043B13E Module for Ford

Danfoss 198535 Valve

Komatsu TV9417 Throttle

Komatsu 1296952H91 Housing Fuel Pump

7J9727 Cylinder Asm for Caterpillar

Komatsu AK4515 Light Hid 70 W Lo

Midtronics LUS7661 Lus7661

Agco AG136228 Harness

Hyster 1553566 Tube

Komatsu 4521102 Cylinder

Komatsu 634958C1 Hub

Case PY01V00034F2 Cylinder Asm.

Hyster S01365590012 Hydraulic Control Valv

Topcon WR44-M800-AE1-RF Communications Router

Hella 011496461 Headlamp Righthand Sae Led A8 S8 15 for Audi

Hella 011496451 Headlamp Lefthand Sae Led A8 S8 15 for Audi

Sevcon 632P44537 Controller Pump

Construction Equip. B21860020 Controller Pump for Hyundai

Garrett 773540-5001S Garrett Power Max Stg.1 Turbo Gm 6.6 L 04.5 2010

Paccar 25S0NLVSSC Ssc Kw T680 10 Swp Bpr

Komatsu 3198632R91 Kit

Liebherr American 7366974 High Pressure Filter

Link Belt 997-077-82140 Cable Harness Asm

Komatsu WB5A01321 Field Kit

Unit Rig Replacement 1016351 Gear Clu Hub

Komatsu 42C-70-05080 Service Kit

Peterbilt J19-6017-03K07S Steering Column Adjustable

10R6199 Control G for Caterpillar

5374627 Retainer for Caterpillar

4355934 Clutch for Caterpillar

International 7504670C91 Seat,Occupant , Vinyl,Dk Ash,2

PH Crane 1010Z1129 Shaft

Wagner Mining 374371 Shaft

Dana 217343 Dana Spicer Gear

Liebherr American 94043156 Ascent Left

Jcb Replacement 320/09256 Crankshaft Kit

Peterbilt E01-1015 Seal Driver Tx8

Minnpar Replacement M0220173 Shaft

Aftermarket AR59250 Axle Knee

4797886 Plate for Caterpillar

3L1Z7804320DAA Panel Instrument for Ford

Liebherr American 10170978 Protecting Relay

Komatsu 426-01-11190 Support

Doosan MX517622R Strut; Reman

F4XY12043B13A Module for Ford

Mopar 68259548AA Sensor

International 4060248C91 Remanalt,Alternator,12 V , 325 A

Hyster 2068906 Cylinder Tilt

Euclid E12200235A 15.5 Eca Clutch

Peterbilt U25-6019-4222 Sleeper Cabinet Door

Miller Electric Manufacturing Co. 041840 Tongs Tt 9 W 18" r for PAI

1181710 Panel A for Caterpillar

Case 321447A2 Valve

Kobelco VAME994378 Kit Gasket

Komatsu 1439369H91 Cylinder Wldmt

Komatsu 42C-01-11224 Tube P60

Komatsu 41449040 Hose

Kenworth P54-6157-100R Headlamp Led

5380123 Pin As. for Caterpillar

Paccar 1407218PAC Housing Axle

Replacement 1473312 Replacement 1473312 Other Parts for Caterpillar

Doosan 110508-07467 Cover Assy

Dana 251246 Spicer Highway Filter Assy

Aftermarket RE32155 Barrel W/Cap

Aftermarket Z72467 Housing

Generac Power Systems 0C87500236 Bearing Set Conrod Standar

Dana 693904 Beam Axle 3.5 In. Beam Drop

Danfoss DV20D1B Valve

Dana R8896/5 Spicer Trunnion

3N7596 Elbow for Caterpillar

DW 05714 DW  Stanadyne Fuel Pump Db4

DW 05489 DW  Stanadyne Fuel Pump Db4

DW 05314 DW  Stanadyne Fuel Pump Db4

7541 Differential Gear Set for PAI

Dana 4213738 Dana Spicer Idler Shaft

Borla 11985 Gt 2024 5.0 L V8 At/Mt Rwd 2 for Mustang

5309501 Rod for Caterpillar

Schaeff 6500716000 Tilt Cyl 15 B10

7E6774 * for Caterpillar

Peterbilt P27-1288-0101 Fuse Assy Cab Pdc 21 M

Fleetrite WK1888653 Package,Kit,Engine Ovhl I 308,

Usa Standard Gear ZGK2109 Differential Ring And Pinion 11.5" Aam 3.73,

Usa Standard Gear ZGK2115 Differential Ring And Pinion 11.5" Aam 3.73,

Standard Ignition IP49 Intermotor Diesel Fuel Injection Pump

Ramsey Winch 332232 Drum Machined Semi Finished 12

Peterbilt B11-1025 Bracket D

Husqvarna 967873205 Electric Vibrator 115 V 1 Ph 50/60 Hz Smart56

Case J944243 Crankshaft

DW 05836 DW  Stanadyne Fuel Pump Db4

DW 05593 DW  Stanadyne Fuel Pump Db4

DW 05374 DW  Stanadyne Fuel Pump Db4

Agco AG332614 Valve Kit

Paccar P92-5921-090408000 Harness Ngp Chassis

Kenworth P92-4746-004 Harness Chassis Node Back

4964800 Pump Gp Grtr Oem  Part for Caterpillar

Case 87449039 Valve Section Hyd

Muncie Power Products RS4SP86VMP1CX Power Take (Pto) Countershaft for Volvo

Komatsu 57442840 Bushing

Komatsu 20K-54-31062 Lever

A1834328001 Door Slpr Access Rh W/ for liner

Kubota 68709-17220 Gear

7N2859 Flywheel A for Caterpillar

Husqvarna 594129801 Clutch 2 Grv 1.437 Bore Blm#F74

Case 446347A1 Valve

Phillips  Temro 8500652 Cab Power® Plus Inverter 1800 Watts, 15 A Connectors

8G0578 Seal for Caterpillar

Rolls Royce EX54407500022 Fuel Injector

67550-SHJ-A20ZZ Panel L. Slide Door for Honda

Terex 9053242 Gear Set

8214142D10 Wire Instrument Panel for Toyota

S67-00003-155 Dashboard Wiring Harness Electrical P3, 7 for liner

Tramac Demolition And Attachments 86634110 Clip Ram

DW 170-032-0123 DW  Holset Turbocharger Hx40 for Cummins

Case 76591233 Rod

Komatsu 10410987 Valve Section Blade

Case YT01V00002R400 Kit Rer for PAI

Komatsu 702-84-00111 Valve Asm

Fuller K4130 O/H Kit

Case 46.04392 Extension Boom 120 F

Aftermarket 4265302 Gear